A multidisciplinary method to assess the reproductive biology of Mystus bleekeri
作者机构:Department of Aquatic Resource ManagementFaculty of FisheriesSylhet Agricultural UniversitySylhet3100Bangladesh Department of Genetics and Fish BreedingFaculty of FisheriesBangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur1706Bangladesh Department of Fish Health ManagementFaculty of FisheriesSylhet Agricultural UniversitySylhet3100Bangladesh School of Environmental and Natural Resource SciencesFaculty of Science and TechnologyUniversiti Kebangsaan MalaysiaUKM BangiSelangor43600Malaysia Department of AgronomyFaculty of AgricultureBangabandhu Sheikh Mujibur Rahman Agricultural UniveristyGazipur1706Bangladesh Department of AquacultureFaculty of FisheriesSylhet Agricultural UniversitySylhet3100Bangladesh
出 版 物:《Aquaculture and Fisheries》 (渔业学报(英文))
年 卷 期:2023年第8卷第3期
页 面:280-287页
核心收录:
学科分类:0710[理学-生物学] 0830[工学-环境科学与工程(可授工学、理学、农学学位)] 0908[农学-水产] 0707[理学-海洋科学] 09[农学] 0713[理学-生态学]
基 金:supported by Sylhet Agricultural University Research System(SAURES) Bangladesh through the research grant#SAU/Director(Research)-80/18/351(15)
主 题:Condition factor Gonadal cycle Gonadosomatic index Mystus bleekeri Sex ratio
摘 要:The study aims to afford a deeper knowledge on reproductive biology of Mystus bleekeri from Surma River,Bangladesh in a multidisciplinary ***,the species is in demand as food and ornamental fish in Bangladesh but still now comprehensive details on reproductive biology of this species is *** 600 fish samples were derived from commercial catches from July 2018 to June *** differences in sex ratio,size distribution,condition factor(Kn),fecundity,gonadosomatic index and gonadal maturation cycle were *** results showed 384(64%)female and 216(36%)male with an overall sex ratio of 1.77:1(female:male).Mean total length(TL)and body weight(BW)of all fish studied were 14.85±3.38 cm TL and 27.54±15.76 g,*** Kn varied with length groups,the highest(1.45±0.23)and lowest(0.89±0.18)values obtained in 16.0-16.9 and 10.0-10.9 cm TL groups,*** highest Kn was documented in October while the lowest was in *** GSI values showed two peaks in July and November for both the *** fecundity was found to vary from 1120 to 14790 eggs with average value of 4968±3047 with 14.4-18.3 cm in TL and 19.97-34.7g in *** relationship of fecundity with TL and BW was F=1.385TL13.405,r^(2)=0.885 and F=5.201BW^(4.827),r^(2)=*** behavior of spawning together with allochronic oocytes development has also been found through *** results of this study could be used for predicting the response of populations of fish in Surma River and/or other where to human interferences and environmental change.